Best/cheapest places to buy game keys online?

[Chingylol]

Hey guys, was wondering what the best sites were for buying game keys? I've been using G2A (very satisfied with them, better prices then Steam sales) or GMG, but was wondering if there's any other good trustworthy sites?

[OnlineSamantha]

I wouldn't call G2A trustworthy. They usually get their keys in a shady way. That could be anything from buying the keys in Russia or another region with low prices, or buying them in bulk off of individuals who might've stolen, like we saw with Sniper Elite 3.